mirror of
https://github.com/bolero-MURAKAMI/Sprout
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105 lines
4.2 KiB
C++
105 lines
4.2 KiB
C++
#ifndef SPROUT_ALGORITHM_FIXED_REVERSE_COPY_HPP
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#define SPROUT_ALGORITHM_FIXED_REVERSE_COPY_HPP
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#include <iterator>
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/index_tuple.hpp>
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#include <sprout/container/traits.hpp>
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#include <sprout/container/functions.hpp>
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#include <sprout/iterator/operation.hpp>
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#include <sprout/algorithm/fixed/result_of.hpp>
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#include <sprout/detail/container_complate.hpp>
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#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT
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namespace sprout {
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namespace fixed {
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namespace detail {
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template<typename RandomAccessIterator, typename Result, sprout::index_t... Indexes>
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inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
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reverse_copy_impl_ra(
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RandomAccessIterator first, RandomAccessIterator last, Result const& result,
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sprout::index_tuple<Indexes...>,
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typename sprout::container_traits<Result>::difference_type offset,
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typename sprout::container_traits<Result>::size_type size,
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typename sprout::container_traits<Result>::size_type input_size
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)
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{
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return sprout::remake<Result>(
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result,
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sprout::size(result),
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(Indexes >= offset && Indexes < offset + size && Indexes < offset + input_size
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? last[-(1 + Indexes - offset)]
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: *sprout::next(sprout::internal_begin(result), Indexes)
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)...
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);
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}
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template<typename RandomAccessIterator, typename Result>
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inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
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reverse_copy(
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RandomAccessIterator first, RandomAccessIterator last, Result const& result,
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std::random_access_iterator_tag*
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)
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{
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return sprout::fixed::detail::reverse_copy_impl_ra(
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first, last, result,
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sprout::index_range<0, sprout::container_traits<Result>::static_size>::make(),
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sprout::internal_begin_offset(result),
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sprout::size(result),
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NS_SSCRISK_CEL_OR_SPROUT::distance(first, last)
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);
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}
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template<typename BidirectionalIterator, typename Result, typename... Args>
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inline SPROUT_CONSTEXPR typename std::enable_if<
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sprout::container_traits<Result>::static_size == sizeof...(Args),
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typename sprout::fixed::result_of::algorithm<Result>::type
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>::type
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reverse_copy_impl(
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BidirectionalIterator first, BidirectionalIterator last, Result const& result,
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typename sprout::container_traits<Result>::size_type size,
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Args const&... args
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)
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{
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return sprout::remake<Result>(result, sprout::size(result), args...);
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}
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template<typename BidirectionalIterator, typename Result, typename... Args>
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inline SPROUT_CONSTEXPR typename std::enable_if<
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sprout::container_traits<Result>::static_size != sizeof...(Args),
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typename sprout::fixed::result_of::algorithm<Result>::type
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>::type
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reverse_copy_impl(
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BidirectionalIterator first, BidirectionalIterator last, Result const& result,
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typename sprout::container_traits<Result>::size_type size,
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Args const&... args
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)
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{
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return first != last && sizeof...(Args) < size
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? sprout::fixed::detail::reverse_copy_impl(first, sprout::prev(last), result, size, args..., *sprout::prev(last))
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: sprout::detail::container_complate(result, args...)
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;
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}
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template<typename BidirectionalIterator, typename Result>
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inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
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reverse_copy(
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BidirectionalIterator first, BidirectionalIterator last, Result const& result,
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void*
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)
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{
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return sprout::fixed::detail::reverse_copy_impl(first, last, result, sprout::size(result));
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}
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} // namespace detail
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//
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// reverse_copy
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//
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template<typename BidirectionalIterator, typename Result>
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inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
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reverse_copy(BidirectionalIterator first, BidirectionalIterator last, Result const& result) {
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typedef typename std::iterator_traits<BidirectionalIterator>::iterator_category* category;
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return sprout::fixed::detail::reverse_copy(first, last, result, category());
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}
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} // namespace fixed
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using sprout::fixed::reverse_copy;
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} // namespace sprout
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#endif // #ifndef SPROUT_ALGORITHM_FIXED_REVERSE_COPY_HPP
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